<template>
  <div class="container">
    <div class="app-container">
      <div class="left">
        <el-input v-model="queryParams.keyword" style="margin-bottom:10px" type="text" prefix-icon="el-icon-search" size="small" placeholder="输入员工姓名全员搜索" @input="changeValue" />
        <!-- 树形组件 -->
        <el-tree ref="deptTree" node-key="id" default-expand-all highlight-current :expand-on-click-node="false" :data="depts" :props="defaultProps" @current-change="selectNode" />
      </div>
      <div class="right">
        <el-row class="opeate-tools" type="flex" justify="end">
          <el-button size="mini" type="primary">添加员工</el-button>
          <el-button size="mini" @click="showExcelDialog=true">excel导入</el-button>
          <el-button size="mini" @click="exportEmployee">excel导出</el-button>
        </el-row>
        <!-- 表格组件 -->
        <el-table :data="list">
          <el-table-column prop="staffPhoto" align="center" label="头像">
            <template v-slot="{row}">
              <el-avatar v-if="row.staffPhoto" :src="row.staffPhoto" :size="30" />
              <span v-else class="username">{{ row.username.charAt(0) }}</span>
            </template>
          </el-table-column>
          <el-table-column prop="username" label="姓名" />
          <el-table-column prop="mobile" label="手机号" sortable />
          <el-table-column prop="workNumber" label="工号" sortable />
          <el-table-column prop="formOfEmployment" label="聘用形式">
            <template v-slot="{row}">
              <span v-if="row.formOfEmployment ===1">正式</span>
              <span v-else-if="row.formOfEmployment === 2">非正式</span>
              <span v-else>无</span>
            </template>
          </el-table-column>
          <el-table-column prop="departmentName" label="部门" />
          <el-table-column prop="timeOfEntry" label="入职时间" sortable />
          <el-table-column label="操作" width="280px">
            <template v-slot="{row}">
              <el-button size="mini" type="text">查看</el-button>
              <el-button size="mini" type="text">角色</el-button>

              <el-popconfirm title="确认删除该行数据吗？" @onConfirm="confirmDel(row.id)">
                <el-button slot="reference" style="margin-left:10px" size="mini" type="text">删除</el-button>
              </el-popconfirm>
            </template>
          </el-table-column>
        </el-table>
        <!-- 分页 -->
        <el-row type="flex" justify="end" align="middle" style="height: 60px;">
          <el-pagination
            layout="total,prev, pager, next"
            :total="total"
            :current-page="queryParams.page"
            :page-size="queryParams.pageSize"
            @current-change="changePage"
          />
        </el-row>
      </div>
    </div>
    <!-- 放置导入组件 -->
    <ImportExcel :show-excel-dialog.sync="showExcelDialog" @uploadSuccess="getEmployeeList" />
  </div>
</template>

<script>
import { getDepartment } from '@/api/department'
import { getEmployeeList, exportEmployee, delEmployee } from '@/api/emplyee'
import { transListToTreeData } from '@/utils'
import FileSaver from 'file-saver'
import ImportExcel from './components/import-excel.vue'
export default {
  name: 'Employee',
  components: {
    ImportExcel
  },
  data() {
    return {
      depts: [], // 组织数据
      defaultProps: {
        label: 'name',
        children: 'children'
      },
      // 存储查询参数
      queryParams: {
        departmentId: null,
        page: 1, // 当前页码
        pageSize: 10, // 每页几条
        keyword: null
      },
      list: [], // 存储员工列表数据
      total: 0, // 记录员工的总数
      showExcelDialog: false // 控制excel弹层显示隐藏
    }
  },
  created() {
    this.getDepartment()
  },
  methods: {
    async getDepartment() {
      // 递归将数据转成树形结构
      this.depts = transListToTreeData(await getDepartment(), 0)
      this.queryParams.departmentId = this.depts[0].id
      // 通过 keys 设置目前勾选的节点状态
      // 树组件渲染是异步的
      this.$nextTick(() => {
        // 此时意味着树渲染完毕
        this.$refs.deptTree.setCurrentKey(this.queryParams.departmentId)
      })
      // 这个时候参数 记录了id
      this.getEmployeeList()
    },
    selectNode(node) {
      // console.log(node)
      this.queryParams.departmentId = node.id// 重新记录了参数
      // 点击列型重新获取
      // 部门换了设置第一页
      this.queryParams.page = 1
      this.getEmployeeList()
    },
    // 获取员工列表的方法
    async getEmployeeList() {
      const { rows, total } = await getEmployeeList(this.queryParams)
      // console.log(rows)
      this.total = total
      this.list = rows
    },
    // 切换页面
    changePage(newpage) {
      // alert(newpage)//新页码
      this.queryParams.page = newpage// 赋值新页面
      this.getEmployeeList()// 查询数据
    },
    // 输入框值改变触发
    changeValue() {
      // 防抖，单位时间内只执行最后一次
      clearTimeout(this.timer)// 清理上次的定时器
      this.timer = setTimeout(() => {
        // console.log(this.queryParams.keyword)
        this.timer = this.queryParams.page = 1
        this.getEmployeeList()
      }, 300)
    },
    /**
     * 导出员工的excel
     */
    async exportEmployee() {
      const result = await exportEmployee()// 导出所有的员工接口
      // console.log(result) // 使用一个npm包 直接将blob文件下载到本地 file-saver
      // FileSaver.saveAs(blob对象,文件名称)
      FileSaver.saveAs(result, '员工信息表.xlsx')// 下载文件
    },
    // 删除员工
    async confirmDel(id) {
      // console.log(id)
      await delEmployee(id)
      // 当前页没数据
      if (this.list.length === 1 && this.queryParams.page > 1) {
        this.queryParams.page--
      }
      this.getEmployeeList()
      this.$message.success('删除员工成功')
    }
  }
}
</script>

<style lang="scss" scoped>
.app-container {
  background: #fff;
  display: flex;
  .left {
    width: 280px;
    padding: 20px;
    border-right: 1px solid #eaeef4;
  }
  .right {
    flex: 1;
    padding: 20px;
    .opeate-tools {
      margin:10px ;
    }
    .username {
      height: 30px;
      width: 30px;
      line-height: 30px;
      text-align: center;
      border-radius: 50%;
      color: #fff;
      background: #04C9BE;
      font-size: 12px;
      display:inline-block;
    }
  }
}

</style>
